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Cortical porosity increases with age and affects bone strength, but its association with fracture in older men is unknown. The aim of this study was to investigate whether cortical porosity is associated with prevalent fractures in older men. A subsample of 456 men aged 80.2 +/- 3.5 (mean +/- SD) years, with available high-resolution peripheral quantitative computed tomography measurements at the
Context. At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magnitude 20.7. Aims. A summary of Gaia DR1 is presented along with illustrations of the scientific quality of the data, followed by a discussion of the limitations due to the preliminary nature of this release. Meth
Gated Recurrent Unit (GRU) neural networks have gained popularity for applications such as keyword spotting, speech recognition and other artificial intelligence applications. Typically for most applications training and inference is performed on cloud servers, and the result are transferred to the power constrained device, e.g., an hearing instrument (HI). This approach has disadvantages such as
Den tekniska utvecklingen och framförallt internet har haft stor påverkan på den internationella handeln. Möjligheten att överföra data inom företag men också mellan företag och länder är en grundläggande del av denna utveckling och möjligheten att överföra data är idag en central del i företagens vardagliga verksamhet. I praktiken kan ett företag inte göra affärer, eller delta i handel, utan att The technological development and above all the internet has had a major impact on international trade. The ability to transfer data within companies, but also between companies and countries is an essential part of this development and the ability to transfer data today is a central component of companies’ everyday activities. In practice, a company cannot do business, or engage in trade, without
Småvatten är trots sin ringa storlek ekologiskt betydelsefulla och fungerar som habitat för många arter. För groddjur spelar de en avgörande roll för fortplantningen eftersom småvatten används som lekmiljö. Populationer av groddjur minskar idag över hela världen och två av de största hoten mot groddjur är habitatförlust och habitatfragmentering. I Sverige har många småvatten försvunnit som en effeDespite their size, small ponds are ecologically important and act as a habitat for many species. For amphibians they play a significant role for reproduction given that ponds are used as breeding sites. At present amphibian populations are decreasing worldwide and two of the biggest threats they face are habitat destruction and habitat fragmentation. In Sweden many small ponds have disappeared ov
Popular Abstract in Swedish Fasoxidbränsleceller (eng. SOFC) är en keramisk bränslecellstyp som arbetar vid höga temperaturer. Genom att utnyttja energin hos avgaserna från en SOFC i en annan kraftvärmeprocess kan man erhålla ett s.k. hybridsystem som når höga verkningsgrader. Ett koncept som studerats i denna avhandling är en SOFC i kombination med en gasturbincykel (SOFC/GT). Eftersom bränslecelSolid oxide fuel cells (SOFCs) are a ceramic type of fuel cell operating at elevated temperatures. By utilising the thermal energy from the SOFC in a heat engine, a hybrid cycle with high performance can be achieved. One promising concept is a pressurised SOFC in combination with a recuperated gas turbine cycle. The fuel cell, being the more efficient power generator of the two, represents the maj
I en värld där våra energiresurser snabbt håller på att förbrukas och där miljöpåverkan blir allt större så är det idag viktigare än någonsin för dagens företag att anpassa sig till framtidens energieffektivare samhälle. Att finna energieffektiviserande åtgärder i det dagliga livet kan tyckas enkelt, det är ju bara att släcka lampan och dra ut mobilladdaren efter användning! Att hitta dessa effeThe thesis was conducted due to new laws from the energy agency. The task of this master thesis was to develop a methodology for energy audits, find energy efficiency measures, and then use the methodology to create a detailed mapping of the formalin-, formic acid- and y-polyol plants. The master thesis also resulted in a comprehensive description of the company’s total energy use. To be able to f
Sweden faces an upcoming period where thousands of buildings built during the million program period will be in need of a façade renovation. There is a large energy-saving potential in these buildings, since they are often poorly insulated and often have a ventilation system without heat recovery. Performing energy-efficient renovation measures to a building are expensive, which results in that th
An LSS resident has been built, a resident with users that suffers from mental disabilities, a passive house by Karnfastigheter. In this project the technology of the passive house concept has been applied on a new area. An evaluation of the passive house Prisman 7 will show if the building works as projected. The energy values are taken from the building when it is in operational condition. The c
Current market trends for industrial automation are the need for customizable production, shorter time to market, and powerful global competitive pressure. Based on these trends two challenges have been identified: 1) flexible production systems and 2) integration and utilization of devices and software. Applications from both process automation, manufacturing, and robotics have been considered.
Background: Three different classification systems for the evaluation of Barrett's esophagus (BE) using magnification endoscopy (ME) and narrow-band imaging (NBI) have been proposed. Until now, no comparative and external evaluation of these systems in a clinical-like situation has been performed. Objective: To compare and validate these 3 classification systems. Design: Prospective validation stu
Gross primary production (GPP) is the primary source of all carbon fluxes in the ecosystem. Understanding, variation in this flux is vital to understanding variation in the carbon sink of forest ecosystems, and this would serve as input to forest production models. Using GPP derived from eddy-covariance (EC) Measurements, it is now possible to determine the most important factor to scale GPP acros
INTRODUCTION Anaesthesia induced hypothermia is a common serious but preventable condition associated with increased bleeding and blood transfusion, increased risk for surgical site infections and increased risk for morbid cardiac events. Active warming is effective in preventing hypothermia but there is a need for more easy to use cost-effective products making active warming available to more pa
Den internationella syndikerade lånemarknaden har sina rötter från 1960-talet och har alltsedan dess varit en av de största, mest flexibla och viktigaste finansieringskällorna för stater och företag världen över. Från 1990-talet fram till och med finanskrisens utbrott hösten 2008 växte marknadsvolymerna kraftigt. Sedan dess har volymerna minskat dramatiskt. Kärnan i ett syndikerat lån är att tvåThe international syndicated loan market has its roots from the 1960s and has ever since been one of the largest, most flexible and most important sources of funding for states and corporations worldwide. From the 1990s until the financial crisis started in the autumn of 2008 market volumes grew sharply. Since then, however, volumes have dropped dramatically. The core of a syndicated loan is that
The notion of human rights is built on the fact that they are universal rights and thus applies to everyone without exceptions. Despite this irregular workers are denied their labour rights and their human rights due to the fact that they are living in a country unlawfully. The states use methods as regularizing irregular migrants or enabling tougher sanctions against irregular migration in order
This is an undeniable fact now that wireless systems pervade all aspects of our lives. These systems are evolving at a rapid clip, connecting more people and devices every single day that goes by. This growth is further fueled by the users’ insatiable appetite for more traffic, be it for online gaming, watching high-fidelity video, downloading huge files, live- streaming and many more uses. With t
The chemical composition of fossil foraminiferal shells (tests) is widely used as tracers for past ocean chemistry. It is, therefore, important to understand how different (trace) elements are transported and incorporated into these tests from adjacent seawater. The elemental distribution within the walls of foraminiferal tests might be used to differentiate between proposed transport mechanisms.
This thesis deals with ultrafast dynamics of electronic processes in rare gas atoms. The processes we explore include photoemission, where we time the emission of electrons moving away from the atomic core following ionization by a photon; and auto-ionization, where the atom spontaneously releases an electron wave-packet following photo-excitation. These processes occur on an attosecond and femtos
Importance: Whether certain weather conditions modulate the onset of myocardial infarction (MI) is of great interest to clinicians because it could be used to prevent MIs as well as guide allocation of health care resources. Objective: To determine if weather is associated with day-to-day incidence of MI. Design, Setting, and Participants: In this prospective, population-based and nationwide setti
East Prussia was a region populated by people of many different ethnoses, confessions and languages. Initially settled by Germans after the Teutonic Knights had conquered native Pruthenians, it quickly became a melting pot of newcomers from different regions of Europe.East Prussian diversity took a serious hit after the unification of Germany in 1871. The homogenisation policies adopted by the aut
